Haemocomplettan® P During Elective Complex Cardiac Surgery

December 15, 2014 updated by: Arno P. Nierich, Isala

Efficacy and Safety of Haemocomplettan® P in Patients Experiencing Microvascular Bleeding While Undergoing Elective Complex Cardiac Surgery

Fibrinogen concentrate is increasingly used in cardiac surgery to reverse coagulopathy. Whether its use reduces blood loss, transfusion and occurrence of clinical adverse events remains unknown.

Study Overview

Detailed Description

Fibrinogen concentrate is increasingly used in surgical patients suffering excessive bleeding refractory to conventional hemostasis treatment. However, these studies published so far comprise small study groups with questionable study designs.

The aim of this study is to determine whether fibrinogen concentrate reduces blood loss and transfusion in patients undergoing elective complex cardiac surgery.

By choosing the domain of complex cardiac surgery which is prone for excessive blood loss and transfusion, we will focus on subjects undergoing high risk procedures. Hereby we hypothesize that administration of fibrinogen concentrate improves hemostasis in patients experiencing microvascular bleeding during complex cardiac surgery. This improvement of the hemostasis is measured by reduced blood loss and transfusion of blood products during surgery and the postoperative period.

Furthermore, we hypothesize that fibrinogen concentrate is safe and well tolerated in patients undergoing complex cardiac surgery. This hypothesis will be investigated by a detailed study of clinical outcomes.

Update regarding interim-analysis:

On 09 August 2013 an interim-analysis was performed as described in the protocol. The outcome was discussed during the Steering Committe of 09 October 2013. During that meeting, based on the results of the interim-analysis, the continuation of the current study was ordered.

Study Type

Interventional

Enrollment (Anticipated)

120

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Overijssel
      • Zwolle, Overijssel, Netherlands, 8011 JW
        • Department Anesthesiology & Intensive Care
      • Zwolle, Overijssel, Netherlands, 8011 JW
        • Department of Cardiothoracic Anaesthesia and Intensive Care Isala Klinieken

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Eighteen years of age or older.
  • Undergoing elective complex cardiac surgery.
  • Understood and willingly given written informed consent.
  • Experience clinically relevant non-surgical microvascular bleeding following removal of cardiopulmonary bypass.

Exclusion Criteria:

  • Positive pregnancy test, pregnancy or lactation.
  • Undergoing an emergency operation.
  • Proof or suspicion of a congenital or acquired coagulation disorder.
  • Clopidogrel use in the 5 days preceding surgery.
  • INR >1.4 if on coumadin.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Albumin
Human albumin with concentration 200g/L. The study bottles of 50 mL will be diluted with saline and will contain 2g in total. This concentration resembles the total protein load in the bottles with Haemocomplettan® P.
Other Names:
  • Albumin
Experimental: Haemocomplettan® P
Dosing of study medication will be individually determined based on plasma fibrinogen concentrations (measured with Clauss method during the reperfusion period on CPB) and body weight. Intravenous infusion within 10 minutes.
Other Names:
  • Fibrinogen concentrate

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To determine whether fibrinogen concentrate infusion reduces perioperative blood loss.
Time Frame: within 12 hours.
Perioperative blood loss measured as blood loss in ml between infusion of study medication and closure of chest.
within 12 hours.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To determine whether fibrinogen concentrate infusion reduces postoperative blood loss.
Time Frame: within 24 hours after infusion of study medication.
Postoperative blood loss, measured as blood loss at the ICU between closure of chest and 1st hour, 6th hour and after 24 hours.
within 24 hours after infusion of study medication.
To determine whether fibrinogen concentrate infusion reduces postoperative transfusion of blood products during elective complex cardiac surgery.
Time Frame: within 24 hours after infusion of study medication.
Number of units red blood cell concentrate, fresh frozen plasma and platelet concentrate administered within 24 hours after closure of chest.
within 24 hours after infusion of study medication.
To determine whether fibrinogen concentrate infusion is safe and well-tolerated.
Time Frame: 30 days
Major clinical events: Mortality at 30 days post-surgery, MACE (major adverse cardiac event), cerebrovascular accident/ transient ischemic attack, renal insufficiency or failure, venous thromboembolism/ pulmonary embolism, allergic or other systemic reaction to study medication
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Principal Investigator: Arno P Nierich, MD, PhD., Isala

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2011

Primary Completion (Actual)

December 1, 2014

Study Completion (Actual)

December 1, 2014

Study Registration Dates

First Submitted

May 10, 2010

First Submitted That Met QC Criteria

May 17, 2010

First Posted (Estimate)

May 18, 2010

Study Record Updates

Last Update Posted (Estimate)

December 16, 2014

Last Update Submitted That Met QC Criteria

December 15, 2014

Last Verified

December 1, 2014

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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